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  1. Webinterface OTP, everything else password: With this option you set up so that it works like most other e-mail providers with two-factor authentication. You can log in to the web interface with your PIN and one-time password and continue to use all other services such as IMAP, POP3, SMTP, WebDAV, CalDAV, CardDAV or ActiveSync with your (normal) password. So you can continue to use local email clients on your PC or smartphone, synchronize calendars, etc.
  2. OTP only for web interface, all other services off: This is a special feature of If you select this option, you can only log in to the web client, the office with secret code and one-time password. All other services will be deactivated for your account. You will not be able to use local email clients or synchronize data.

Don't First click on "Submit" just yet. First configure your . Be sure to create or activate an OTP token below.

Manage your own OTP token


After having created an OTP token for a smartphone app, just scan the QR code with your phone to set up the app for generating valid tokens.

Lost token - what now?

If you have lost your token, you can still use the function to reset your password. The moment you reset your password e.g. by e-mail or a reset code via SMS, you can create a new password. This also deactivates two-factor authentication. With this new, regular password you can log in again - and have access to all functions of your office as usual.

As already mentioned above, you can only reset your password if you have stored the corresponding information in your account. If, for example, you have not entered an e-mail address or a mobile phone number for a password reset for reasons of anonymity and access to your e-mail account via IMAP is deactivated, then we have no way of verifying your identity as the owner of the account.
In this case a password reset is no longer possible!